Results 81 to 90 of about 2,474,961 (353)

Onset, timing, and exposure therapy of stress disorders: mechanistic insight from a mathematical model of oscillating neuroendocrine dynamics [PDF]

, 2016
The hypothalamic-pituitary-adrenal (HPA) axis is a neuroendocrine system that regulates numerous physiological processes. Disruptions in the activity of the HPA axis are correlated with many stress-related diseases such as post-traumatic stress disorder (
Chou, Tom, D'Orsogna, Maria R., Kim, Lae Un   +2 more
core   +3 more sources

Mechanism and Finality in Biology

Azafea: Revista de Filosofía, 2011
This article defends a teleological approach which is compatible with our scientific image. It is held that organisms can be depicted as autonomous systems in which occurs autorregulation processes and exhibits a teleological behaviour oriented to an ...
Andrés Luis JAUME RODRÍGUEZ
doaj  

HJT-sRNA-m7 bencaosome modulates fibrosis progression in a silicosis mouse model [PDF]

Jichu yixue yu linchuang
Objective To explore the role and mechanism of HJT-sRNA-m7 (M7) bencaosome in a silicosis mouse model. Methods C57BL/6J mice were randomly divided into four groups: blank, control, negative control (NC) oligonucleotide, and M7 treatment (HJT-sRNA-m7 ...
CHANG Jiahui, REN Pengju, ZHOU Yunyi, JIANG Chengyu, ZHANG Yanli
doaj   +1 more source

Modifications in FLAP's second cytosolic loop influence 5‐LOX interaction, inhibitor binding, and leukotriene formation

FEBS Letters, EarlyView.
The enzyme 5‐lipoxygenase (5‐LOX) catalyzes the first step in the biosynthesis of leukotrienes (LTs) involved in inflammatory pathophysiology. After cellular stimulation, 5‐LOX translocates to the nucleus, interacting with the 5‐LOX‐activating protein (FLAP) to form LTA4 from arachidonic acid (AA).
Erik Romp, Katharina Rataj, Stefanie König, Marcia E. Newcomer, Oliver Werz, Ulrike Garscha   +5 more
wiley   +1 more source

Posttranscriptional Control of Neural Progenitors Temporal Dynamics During Neocortical Development by Syncrip

Advanced Science
The development of the mammalian neocortex is precisely regulated by temporal gene expression, yet the temporal regulatory mechanisms of cortical neurogenesis, particularly how radial glial cells (RGCs) sequentially generate deep to superficial neurons ...
Jiarui Wu, Haoyang Yu, Xinyi Dou, Bin Yin, Lin Hou, Yuanchao Xue, Boqin Qiang, Pengcheng Shu, Xiaozhong Peng   +8 more
doaj   +1 more source

Study of dynamic transcriptome during mitosis of HAP1 cells [PDF]

Jichu yixue yu linchuang
Objective To comprehensively understand the map of transcripts during mitosis and their regulatory mechanisms of HAP1 cells by conducting transcriptome sequencing analysis after being released by mitotic synchronization arrest.
WU Xueli, YANG Yurong, BAO Yongli, WU Rucheng, WANG Lisha, CHEN Yang
doaj   +1 more source

The carboxylate “gripper” of the substrate is critical for C‐4 stereo‐inversion by UDP‐glucuronic acid 4‐epimerase

FEBS Letters, EarlyView.
UDP‐glucuronic acid 4‐epimerase (UGAepi) catalyzes NAD+‐dependent interconversion of UDP‐glucuronic acid (UDP‐GlcA) and UDP‐galacturonic acid (UDP‐GalA) via C4‐oxidation, 4‐keto‐intermediate rotation, and C4‐reduction. Here, Borg et al. examined the role of the substrate's carboxylate group in the enzymic mechanism by analyzing NADH‐dependent reduction
Annika J. E. Borg, Laura De Cnop, Bernd Nidetzky   +2 more
wiley   +1 more source

B cell mechanobiology in health and disease: emerging techniques and insights into therapeutic responses

FEBS Letters, EarlyView.
B cells sense external mechanical forces and convert them into biochemical signals through mechanotransduction. Understanding how malignant B cells respond to physical stimuli represents a groundbreaking area of research. This review examines the key mechano‐related molecules and pathways in B lymphocytes, highlights the most relevant techniques to ...
Marta Sampietro, Marco Cellani, Cristina Scielzo   +2 more
wiley   +1 more source

Universal Mortality Law, Life Expectancy and Immortality

, 2004
Well protected human and laboratory animal populations with abundant resources are evolutionary unprecedented, and their survival far beyond reproductive age may be a byproduct rather than tool of evolution.
Arantes-Oliveira, Azbel', Azbel', Azbel', Carey, Carnes, Charlesworth, Coale, Curtsinger, Deevey, Euler, Finch, Gompertz, Halley, Jazwinsi, Kirkwood, Mair, Mark Ya. Azbel', Olshansky, Pearl, Shama, Stauffer, Strehler, Vaupel, Yu   +24 more
core   +1 more source

The thioredoxin‐like and one glutaredoxin domain are required to rescue the iron‐starvation phenotype of HeLa GLRX3 knock out cells

FEBS Letters, EarlyView.
Glutaredoxin (Grx) 3 proteins contain a thioredoxin domain and one to three class II Grx domains. These proteins play a crucial role in iron homeostasis in eukaryotic cells. In human Grx3, at least one of the two Grx domains, together with the thioredoxin domain, is essential for its function in iron metabolism.
Laura Magdalena Jordt, Manuela Gellert, Finja Zelms, Sander Bekeschus, Christopher Horst Lillig   +4 more
wiley   +1 more source